{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["concept or principle", "machanical property", "process parameter", "process characterization", "manufacturing process", "biomedical"], "input": "Four of the above process categories can directly produce metal parts ; powder bed fusion , directed energy deposition , material jetting , and sheet lamination ."}
{"concept or principle": ["process"], "machanical property": [], "process parameter": [], "process characterization": [], "manufacturing process": ["powder bed fusion", "directed energy deposition", "material jetting", "sheet lamination"], "biomedical": []}